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Since the discovery of superconductivity in MgB2 (Tc ~ 39 K), the search for superconductivity in related materials with similar structures or ingredients has never stopped. Although about 100 binary borides have been explored, only few of…

We report experimental discovery of tantalum polyhydride superconductor. It was synthesized at high pressure and high temperature conditions using diamond anvil cell combined with in-situ high pressure laser heating techniques. The…

We report the experimental discovery of superconductivity with critical temperature Tc above 70 K in zirconium polyhydrides, the record high so far for 3d transition metal hydrides. The superconducting zirconium polyhydrides are synthesized…

Superconductivity · Physics 2022-04-01 C. L. Zhang , X. He , Z. W. Li , S. J. Zhang , S. M. Feng , X. C. Wang , R. C. Yu , C. Q. Jin

Recent renewal of the highest transition temperature in a conventional superconductor of the sulfer hydride attracts much attention to exploring simple compounds with the lighter elements, situated in unconventional conditions. We report…

Materials Science · Physics 2022-05-11 K. Yoshimatsu , O. Sakata , A. Ohtomo

The discoveries of high-temperature superconductivity in H3S and LaH10 have excited the search for superconductivity in compressed hydrides. In contrast to rapidly expanding theoretical studies, high-pressure experiments on hydride…

Superconductivity · Physics 2021-09-15 Wuhao Chen , Dmitrii V. Semenok , Xiaoli Huang , Haiyun Shu , Xin Li , Defang Duan , Tian Cui , Artem R. Oganov

The discovery of nearly room-temperature superconductivity in superhydrides has motivated further materials research for conventional superconductors. To realize the moderately high critical temperature $(T_\mathrm{c})$ in materials…

High-pressure structural searches of superhydrides CeBeH$_8$ and CeBH$_8$ were performed under ambient pressure up to 300 GPa. We identify $Fm\overline{3}m$-CeBeH$_8$ with a superconducting transition temperature $T_{c}$ of 56 K at 10 GPa.…

Superconductivity · Physics 2022-11-01 Yu Hou , Bin Li , Yan Bai , Xiaofeng Hao , Yeqian Yang , Fengfeng Chi , Shengli Liu , Jie Cheng , Zhixiang Shi

Here we report targeted high-pressure synthesis of two novel high-$T_C$ hydride superconductors, $P6_3/mmc$-$ThH_9$ and $Fm\bar{3}m$-$ThH_{10}$, with the experimental critical temperatures ($T_C$) of 146 K and 159-161 K and upper critical…

Superconductivity in highly-pressurized hydrides became primary direction for the exploration of fundamental upper limit for the superconducting transition temperature, Tc, after Drozdov et al (Nature 2015, 525, 73) discovered…

Superconductivity · Physics 2023-08-28 E. F. Talantsev

High-pressure structural search was performed on the hydrogen-rich compound LuBeH$_8$ at pressures up to 200 GPa. We found a $Fm\overline{3}m$ structure that exhibits stability and superconductivity above 100 GPa. Our phonon dispersion,…

Superconductivity · Physics 2024-08-26 Bin Li , Yeqian Yang , Yuxiang Fan , Cong Zhu , Shengli Liu , Zhixiang Shi

Superconductivity was found for a rhenium boride Re3B at Tc=4.7 K and for ReB2 with Tc in the range from 4.5 to 6.3 K depending on the boron concentrations. Both compounds have the structure different from that of the simple layered…

Superconductivity · Physics 2007-05-23 G. K. Strukova , V. F. Degtyareva , D. V. Shovkun , V. N. Zverev , V. M. Kiiko , A. M. Ionov , A. N. Chaika

The discovery of superconductivity in 3$d$-transition metal compounds with strong magnetism is interesting but rare. Especially for Mn-based compounds, there exist only very limited materials that show superconductivity. Here, we report the…

Superconductivity · Physics 2025-02-17 Zhe-Ning Xiang , Ying-Jie Zhang , Qing Lu , Qing Li , Yiwen Li , Tianheng Huang , Yijie Zhu , Yongze Ye , Jian Sun , Hai-Hu Wen

Hydrides are considered to be one of the most promising families of compounds for achieving high temperature superconductivity. However, there are very few experimental reports of ambient-pressure hydride superconductivity, and the…

Superconductivity · Physics 2026-03-18 Antonio Sanna , Tiago F. T. Cerqueira , Ekin Dogus Cubuk , Ion Errea , Yue-Wen Fang

Since the discovery of superconductivity at 200 K in H3S [1] similar or higher transition temperatures, Tcs, have been reported for various hydrogen-rich compounds under ultra-high pressures [2]. Superconductivity was experimentally proved…

New stable thorium decahydride $Fm\bar{3}m$-$ThH_{10}$, a record high-temperature superconductor with $T_C$ up to 241 K ($-32^{\circ}C$), critical field $H_C$ up to 71T and superconducting gap ${\Delta_0}$ = 52 meV at 80-100 GPa was…

Observation of high-temperature superconductivity in sulfur hydrides at megabar pressures has generated an irresistible wave on searching for new superconductors in other compressed hydrogen-rich compounds. An immediate effort is towards…

Superconductivity · Physics 2016-02-10 Xin Zhong , Hui Wang , Jurong Zhang , Hanyu Liu , Shoutao Zhang , Hai-Feng Song , Guochun Yang , Lijun Zhang , Yanming Ma

The search for room temperature superconductivity has accelerated dramatically in the last few years driven largely by theoretical predictions that first indicated alloying dense hydrogen with other elements could produce conventional…

Recent discovery of high-temperature superconductivity (Tc = 190 K) in sulfur hydrides at megabar pressures breaks the traditional belief on the Tc limit of 40 K for conventional superconductors, and open up the doors in searching new…

The binary polyhydrides of heavy rare earth lutetium that shares a similar valence electron configuration to lanthanum have been experimentally discovered to be superconductive. The lutetium polyhydrides were successfully synthesized at…

Layered transition-metal tellurides have attracted considerable attention because of their rich physics; for example, tungsten ditelluride WTe2 exhibits extremely large magnetoresistance; the tritelluride ZrTe3 shows a charge density wave…

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